AR15 Gas System and Buffer Basics

[@Codevil.]

Wow, for a guy in the know about America's Rifle, he sure has a plesant disposition when explaining the basics, I didn't need to watch this, but I did anyway, im the same way, happy to inform those who show genuine interest, great job!

[@GunsandTactics]

Glad you did and I sincerely appreciate the comment. Cheers!

[@3ron]

This could have been helpful to have watched before building my AR.

[@deplorable-0ne]

@@newdefsys So is adding a red-dot, that doesn't mean it fits his application, especially if he's shooting long range. I'd rather have the right part than have an unneeded band-aid.

[@deplorable-0ne]

@@newdefsys When you offered it as a solution to a problem that doesn't exist. I said it was a band-aid. Your last question is what you did. 3ron made a comment that needed no solution and you tried offering one with a wild solution from left field. What in his comment made you think he needed a heavier buffer. Just because most AR's are over gassed doesn't support your reply. It's our job as humans to educate and inform not assume or make determinations with incomplete data resulting in misinformation spread on the internet.

[@Richardjohnson6969]

Deplorable 1 wrong. Not a band aid

[@deplorable-0ne]

@@Richardjohnson6969 Then tell us what it is...

[@barking.dog.productions1777]

@@deplorable-0ne You are absolutely correct. 3ron did not ask for any help, did not say that he had any problems, and just commented the video with a simple observation... Some people seem to live to show how smart they are, and to find a victim to save... they can't seem to help themselves - they have to blurt out a half-ass solution before they even finish reading the comment.

[@69dlx84]

Thank you for explaining how the basic gas system on an AR works. So many of the youtube AR 'experts' have no concept of a locking bolt and what the gas actually does. This should be mandatory viewing for about 98% of the so called AR experts on KZbin,

[@GunsandTactics]

We think everyone should watch it too, and subscribe ha ha

[@MrKlein83]

This is one of the many videos I watched before attempting my first AR-15 build. Thank you Dave for recommending the H buffer (or H1) for my 16" mid-length barrel, my gun shoots/cycles like a dream. BCM upper, American Defense BCG, 16" Ballistic Advantage .223 Wylde Hanson Profile barrel, VG6 Epsilon compensator.

[@GunsandTactics]

Great to hear your rifle shoots well, thank you for watching!

[@jaredblair3697]

Where did you purchase your compensator from

[@pepelopez2880]

Have you tried it on a full auto lower ?

[@centex52]

I just got my first AR a couple weeks ago and have been researching everything on it, this channel is so helpful, will not take it to the range till I can break it down and clean it know all about it, videos like this will and is helping me so much, Thank you sir!

[@contractor556]

How did it go? What did ya do to it!?

[@TexasTrained]

You are very good at explaining everything in a manner where all of " US Dummies" can understand and comprehend it. As well as the "Newbies" just getting started.I very much appreciate your expertise .Ive learned quite a bit here today...Many Thanx

[@GunsandTactics]

trey orr thank you for the kind words

[@jeffreyyoakum6973]

Would be nice if someone had a chart for different barrel length with the different buffers and spring combinations. For the difference also in calibers rate of twist annulled weights.

[@jeffreyyoakum6973]

...rate of twist and bullet weights.

[@jeffreyyoakum6973]

@W M thanks for the info checked out their springs will have to give them a try.

[@Turambar117]

To be accurate you'd also need gas port sizes, primarily suppressed vs unsuppressed, environments, full pressure 5.56 vs low quality .223 etc. If you want the optimum buffer anyway. You can get away with a buffer that's a little light or a little heavy depending on your maintenance cycle and if you plan to shoot full auto.

[@Turambar117]

That isn't to say that your rifle won't run reliably if something is a bit off but it may beat itself to death but it won't be as reliable as it could be

[@bulgariansam505]

@@jeffreyyoakum6973 eewwwww

[@cotajesus90]

this is the best explanation i have seen on gas systems and buffer weight

[@frostydabear6954]

Really great video. Very informative even for a short "quick cover" of the topic

[@jayryan7473]

This is the greatest explanation on how the gas (and blowback) system works in an AR. Thank you-just subscribed!

[@rodan2852]

Check out "School of the american rifle"

[@wde1978]

Excellent video. I have been looking for a gas system tutorial this thorough. It's perfect for a beginner.

[@herman58100]

Very informative, thanks for posting. Never gave the buffer system a second thought.

[@Sparkymark5114]

Thank you for this video, building my AR and this video was extremely help in knowing how all the components come together to make it shoot properly.

[@GunsandTactics]

Thanks for watching

[@alallan7584]

I love this, please teach more on buffers and gas systems. I build and want to know about buffer weight-light weight BCG's and variable gas block interactions. Thank you Dave, great video !

[@GunsandTactics]

+Al Allan I will add this to the list. Thanks for watching -Dave

[@aidanrussell-smith4619]

Dave, i would love to see another video on the subject as i have very little on the subject and am planning on making an AR15 in the not to distant future

[@mak2382]

GUNS & TACTICS I know this is late on this video but was wondering what buffer spring do you run on your 16" barrels with mid length gas system I know you said you run a h1 buffer Thanks

[@GunsandTactics]

Mak 23 standard Carbine spring usually. Either a Wolff, springco or brownells.

[@davide.burden2043]

Ditto Dave. I'm looking to start my build soon as well. I would really appreciate more info on gas & buffer systems, especially for 20 inch Bull Barrel with a full length stock. PS: Enjoyed the vid, subbed.

[@masteryoda7583]

Thank you for sharing this video it really helps people who are new to this. Thanks again

[@kentuckyjustice1408]

I'd love to see more on buffers, springs, and how they affect the most popular calibers commonly used with the AR platform. Now, THERE'S an encyclopedia's worth of videos. Thanks.

[@richardlahan7068]

Yep. Too many people start switching and swapping buffer weights without realizing that can be dangerous.

[@swinginmad]

I had no idea that the buffer had so much to do with the bolt. Very nice to know! Thanks.

[@toma382]

I would really like to see an in depth video on buffer systems for 9mm ar pistol builds. As for proper weight of buffer for good cycling and spacers to be used to prevent bolt catch shear off (reduced return travel velocity).

[@barking.dog.productions1777]

1st time viewer - new and instant subscriber. You have a great presentation style, and the information is not only first rate, but easy to understand and easy to digest. I have built a few AR-15s now, and most of this I didn't know. I just took quality off the shelf parts and I matched them up the same way that I would build a race car, which I do understand... I focused on buying quality parts, and I matched the buffer, gas tube, and stock extension to the barrel size. I also usually use an adjustable gas block so that it can be adjusted to the specific gun and the chosen ammo. It always worked out well, but I will definitely be looking for the follow up videos to this one. Thank you. The information that you provided today is as hard as hens teeth to find in one place, much less in a fascinating video like you have provided here today.

[@GunsandTactics]

Thank you so much for the nice words, really appreciate the time you took to post.

[@charlesa7271]

Wow this is a very informational video. This dude kept saying it’s actually more complicated and stuff to be honest he really he explained a lot and helped out with my confusion with the gas systems. He basically break’d it down more clearly good video.

[@GunsandTactics]

Thank you, sincerely appreciate the comment!

[@mje19D]

Two first names...Decent backdrop...seems knowledgeable....subbed. Don't let me down buddy.

[@GunsandTactics]

I’ll do my best :-). -Dave

[@CountArtha]

The carbine gas system is actually optimized for an 11.5" barrel, as on the Colt 629 carbine. The reason the M4 has a 14.5" barrel is the need for space in front of the gas block to mount a bayonet.

[@BenelliBoyM3]

You are 100% Right

[@bigredone1030]

Incorrect. Those cuts are to mount an m203 grenade launcher. Those cuts became obsolete with the m320 grenade launcher by HK

[@robteaster2446]

My first time seeing a Guns & Tactics video. Wow. Have I been missing out. Great educational tool for gaining knowledge about all things rifle platforms, mechanics, and parts. Yep. I have subscribed. Great video!!

[@GunsandTactics]

Thanks and welcome!

[@jagman2962]

Some good information here! Great video,well spoken and straight to the point! I want more!!😀. Keep em coming!

[@chrishill1286]

Most of the questions I field in my little piece of the world are short stroking AR pistols builds. Lighten the buffer is my canned response because it's easy assuming a non adjustable block.

[@johnb7889]

Interesting and informative. Especially to one just entering the AR arena. Thank you.

[@pete5108]

Well done. Do you have any videos on gas and buffer systems for 7.62x39 AR's? That seems to be a totally different beast. Thank you!

[@steveavant9727]

Very well done! Quality audio and video and you did a superb job with your explanation of the systems.

[@GunsandTactics]

Thank you very much, appreciate your comment

[@LastofallJedi]

Very helpful. I will watch more

[@brettbourgeois5379]

Excellent video, thank you very much. Minimal fluff in the beginning and very well explained and thorough. Again, thank you.

[@GunsandTactics]

Thank you. Appreciate that!

[@LuisRivera-cx2lr]

great video ... thanks ... I'm new to the AR and was having ejection issues and you totally showed me what is going on in 4 mins. Thank you

[@jesusmendez50]

Great video sir. Working on my build and watching your vids!

[@GunsandTactics]

Thanks for watching! Your Question also made it to this month's show

[@devonbrown387]

I was just watching a midwestindustries video with you in it Dave. Hell yeah i picked a random video and you show up. You just earned yourself another sub my friend

[@anthonyshepard9606]

I would like to see more about buffers and buffer Springs in regards to AR-10/ lr-308. 🔫🇺🇸🔫🇺🇸🔫🇺🇸🐢

[@worthlesscontentclub]

This is exactly the information i was looking for. Thank you for explaining this in a way a total beginner can understand

[@GunsandTactics]

You're very welcome!

[@EchoSigma6]

All my rifles are mid length 16”s. I only buy the carbine buffer kits because that is what I was told to pair it with. Some guys get a little OCD and they’ll tune the weight type to their liking but for a rookie like me I want reliability since I use all kinds of practice ammo, the cheaper the most likely picked by me.

[@jordanschrock5191]

Awesome explanation. Would def recommend this to other newbies.

[@youtubejunkie6625]

I have recently been introduced to your Chanel and I really like the content. I just learned something about the h mark on a buffer. Thank you.

[@mfmc3233]

Excellent video. Good teaching style, simple explanation.

[@GunsandTactics]

Thank you!

[@chaunceychappelle2173]

Glad you explained. Thanks.

[@reigndurrent3658]

Just got interested in guns, great video thank you!

[@charlesparker838]

Well done. You are easy to listen to. Keep it up.

[@GunsandTactics]

+Charles Parker thanks!

[@petersouthernboy6327]

Just a suggestion: if you prefer not to run an adjustable gas block (they all eventually carbon weld) - contact SPRINCO, tell them about your specific combination - and ask them what spring and buffer their customers are using. For about $30 you can get custom improved chrome silicon buffer, ejector, and extractor springs that will make your AR run great, eat everything, and not gouge your brass.

[@JayDee-bz2ge]

A lot of people think the "carbine" gas & carbine buffer are related. The buffer length can be rifle with carbine gas, & visa versa, and both will function reliably done properly, (buffer weight)... Rifle buffer systems are just full length, non collapsible, carbine tube & buffers are short. Some timing , speed, recoil etc will change a bit, but both will "function" fine..

[@paraguitarmedic]

Thanks so much for the obvious work you put into this. I'd like to see a more in depth discussion about buffer weights and springs for each gas system as well. I'm putting together an 11.5 carbine and don't know where to start buffer-wise

[@GunsandTactics]

I’d start with an h2 and see how it runs. It will depend on the size of the gas port on the barrel and ammo you use.

[@Threeonezero310]

This guy knows his stuff

[@GunsandTactics]

Thanks, I really do try -Dave

[@Danny-gx3sz]

Amazing video really helped me understand the whole system a lot better and helping me with my 300BLK build and what to pick, liked subscribed

[@GunsandTactics]

Glad it was helpful thanks for watching

[@flawless1up]

how did your build turn out? im building a pdw 300bo now. i want it small but how small idk. 5.5" or 7"

[@crazyhawk99]

Good very basic intro, as you stated, but you should follow up with a 201 and 301 in speaking to how do you know if your gun is over gassed, felt recoils with 16” mid vs carbine, etc...

[@jaciel1964]

Wow thank you for this Dave. More please haha

[@billy19461]

Make a series of videos on a step by step build. From ordering parts to finish.

[@GunsandTactics]

We’ve talked about it but sadly it would have to be on another platform as KZbin restricts gun building

[@patwalsh2868]

Thanks for your knowledge, I did learn a lot ! Very good job explaining the entire system !!! 💥💥🔫

[@runwayray]

Awesome, thanks, very helpful!!!

[@tomacton6718]

finally, someone who knows about bolt carrier bounce. ....and why i avoid spike's tungsten powdered T2. no slap effect.

[@mossranchoutdoors7249]

Great information👍

[@tangotango256]

great info !!! clarifies some doubts and questions

[@ramhammer10-4]

I have a buffer for my AR 308 build. It has no markings on it. I'm glad I didn't mix it with my various buffers for my AR 15 builds that I replaced.

[@anthonycaldi7056]

Awesome Video, really well explained in a short period of time!

[@GunsandTactics]

Thanks!

[@williamshull9161]

Good practical explanation, thank you!

[@robertanderson8613]

A great show I'd love to see a show on barrel extensions and using them on Differant barrels

[@GunsandTactics]

The barrel extension is basically attached to the barrel and not swappable Did you mean something else?

[@robertanderson8613]

@@GunsandTactics take a look at the channel precision machine shed they offer extensions 1 thousand oversize and some others I don't remember they offer half thousand over also for tight fit to the upper I was wondering if the average barrel had the extension machined with the barrel instead of being threaded

[@GunsandTactics]

Torqueing on a barrel extension and aligning it with the port is something that is not available for most, if you want the tight friction fit easiest would be to use a Bravo Co upper. They spec out the barrel ext mouth tight and requires thermal fitting.

[@jimFcooper]

holy hell two first names!!!!

[@tomahawkm4687]

Great video. Off topic, the silhouette behind you and on the rifle reminds me of the grunt decal from halo

[@jeffstevens156]

YES! This is a great video. I’ve only had one system problem and it was on a suppressed gun. The gunsmith didn’t explain it to me. GOOD Gunsmiths are a rarity. If You find one, go ahead and shackle one of Your legs to His. There are a Lot Of hacks out there!

[@texasviking1]

My ARs cycle anything I put in em. Steel case, brass case. It just doesn’t seem to mind anything I run through it.

[@richardlahan7068]

I've blown primers shooting Tulammo steel. Won't shoot that again.

[@j.d.kaelin3574]

J.D. Thanks for not assuming we know everything. Good basic intro.

[@GunsandTactics]

Thanks for watching, glad you liked it!

[@Ericdz302]

great video, very informative!

[@GunsandTactics]

Thanks!

[@KevinCar-jx1jw]

What do you recommend for a buffer an spring for a 10.5 pistol to smooth out the cycling on it. I've been really learning a lot on your channel .has to be one of the best an most informative channel on KZbin.

[@GunsandTactics]

Depending on the gas port, but I would say look at the Geissele 42 spring with H1 or h2 weights.

[@jimjones6657]

You could use a adjustable gas block and tune down the gas to where the weapon cycles for your loads and doesn't overgas it especially if you want to suppress it. The wrong can and to much back pressure and the weapon will over cycle

[@kinzieconrad105]

Got dolos 2 Prometheus fore grip and nut still using factory buffer tube with zero failure to buffer tube. 99% of felt recoil comes from bullet and powder gasses pushing out the front of barrel. And I was switch between .556 and .450 bushmaster.

[@DavidA20200]

There’s also a micro gas system for like the Sig Rattler or something with less than a 6 inch barrel

[@JoshuaBurton110213]

Great explanation. Clear and simple. Thank you for clarifying the "buffer tube"/receiver extension. I did not know that.

[@VieweronYouTube]

Nice informative video.

[@GunsandTactics]

Glad you liked it

[@johnstewart8849]

Good vid....how’s the AR compare with the AK system?

[@GunsandTactics]

Much different beasts.

[@johnstewart8849]

GUNS & TACTICS Thus my question...

[@petersouthernboy6327]

One has really sloppy tolerances and cycles gas through a long stroke piston on the barrel, the other has tighter clearances and cycles gas through the bolt carrier in the upper receiver

[@TheMrwhite6199]

I run h3 buffer in all my guns with heavy springs...works for me

[@Drawde907]

I really like the looks of that rifle .

[@5jjt]

Could you please make a video of converting a pistol into a rifle, and how to avoid any issues one may run into if they are new to this? For example, take an AR pistol with a front sight post/ gas block combo and how to turn it into a rifle. I'd love to see this conversion take place in the real world.

[@GunsandTactics]

Basically be a barrel and stock swap, I’ll see if I can do something like that but it might be a little while. Video projects are pretty swamped

[@MichaelWilliams-nu6lv]

Those who try to be talking " gun nuts " should love videos 🎥 such as this because many times I talk to those who doesn't know why we need rifles or shotguns and once I start talking the boring stuff they just feel small and just try to end the conversation which they should have never started anyway ! Love to show anti - gunners I am more than just a guy walking around with my Glock model 41 in 45 caliber 🔫

[@billy19461]

Just found your channel and subbed . Wish I knew 1/2 as much as you do.

[@GunsandTactics]

Thank you, I’m happy to share knowledge so don’t be afraid to ask

[@michael7015]

Thanks for the input...…. very informational, and well done. Great job !!!!!

[@GunsandTactics]

Glad you liked it, thank you!

[@brianodell6359]

That was helpful. Thank you

[@sithlord1906]

QUESTION: can you do a video on what to consider when selecting a suppressor and what kind of changes [ gas system, buffers, bolt carrier groups, etc.] you may need to make for an AR Pistol?

[@GunsandTactics]

Good idea, I’ll add it to the list

[@a.braggs4294]

Great video. Thanks!

[@GunsandTactics]

Thanks for watching

[@davepayne2024]

Very helpful

[@oscarortiz1114]

Very well explained. It’s there a video on how to do this ?

[@johnbrunetto]

Excellent, thank You

[@chadhaire1711]

what happens if you place a full length buffer system on a AR pistol with 7 inch barrel???

[@stox500]

Great video, thanks.....learning...

[@lutherprice2062]

Great video Dave, I’ve had several ARs over the years but with adding a suppressor it’s changed the cycling a lot. My latest one is an A2 M16 clone with a rifle length buffer. Can you add tungsten weights the same as with the carbine buffers. I added a heavier buffer spring but it still feels over gassed. Thanks for all the info.

[@SixStrings165]

Great basic info

[@leviscott1472]

Awesome video. Really enjoy hearing knowledge info:).

[@GunsandTactics]

Thank you for watching, appreciate the comment

[@lrock48]

Very informative, thank you.

[@GunsandTactics]

Thanks!

[@kevinroberts9580]

Great video! Very clear and concise. Can you talk about being over gassed and the ejection pattern of that?

[@guyfranks4354]

Is the 2" longer than Rifle Length gas tube still available

[@sushi_wolf]

Looking into building AR15s seems pretty straightforward. Anyone have any advice on which are the most difficult tasks in completing a build?

[@zenprecision287]

What buffer woudl you use for 12.5" barrel?

[@scarter176]

Good basic info thanks !

[@christopherbeger5553]

Exactly the video i needed. Thank you!

[@GunsandTactics]

Thanks for watching. Glad you liked it, please subscribe

[@morgan3105]

Good video, thanks a lot, I'm trying to learn about all this as best I can, and this helped, thanks again-

[@GunsandTactics]

Happy to help

[@kenneychappuis1853]

Great video

[@jeff9104]

Great video !

[@roostersofer5759]

Does the same info apply to the AR 10 buffer and gas tube and block ?

[@Bdady74]

Good info thx!